Tracheotomy protective sleeve

The utility model belongs to the field of medical instruments, and particularly discloses a tracheotomy protective sleeve, a sealing sleeve is fixedly sleeved on the surface of an outer sleeve, a bottom plate is arranged on the surface of the sealing sleeve, the tracheotomy protective sleeve is characterized in that notches are symmetrically arranged on two sides of the bottom plate, ear plates are arranged in the notches, and two sides of each ear plate are rotatably connected with the inner walls of the notches; a pressure bearing ring is arranged on the inner side face of the bottom plate, the pressure bearing ring and the bottom plate are integrally manufactured, clamping blocks are symmetrically fixed to the inner side faces of the two lug plates, clamping grooves are symmetrically formed in the opposite sides of the two clamping blocks, a first connecting ring is arranged between the two lug plates, a clamping plate is fixedly connected to the side face of the first connecting ring, and the clamping pla